Auxiliary Truncated Unscented Kalman Filtering for Bearings-Only Maneuvering Target Tracking

نویسندگان

  • Liang-Qun Li
  • Xiao-Li Wang
  • Zong-Xiang Liu
  • Wei-Xin Xie
چکیده

Novel auxiliary truncated unscented Kalman filtering (ATUKF) is proposed for bearings-only maneuvering target tracking in this paper. In the proposed algorithm, to deal with arbitrary changes in motion models, a modified prior probability density function (PDF) is derived based on some auxiliary target characteristics and current measurements. Then, the modified prior PDF is approximated as a Gaussian density by using the statistical linear regression (SLR) to estimate the mean and covariance. In order to track bearings-only maneuvering target, the posterior PDF is jointly estimated based on the prior probability density function and the modified prior probability density function, and a practical algorithm is developed. Finally, compared with other nonlinear filtering approaches, the experimental results of the proposed algorithm show a significant improvement for both the univariate nonstationary growth model (UNGM) case and bearings-only target tracking case.

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عنوان ژورنال:

دوره 17  شماره 

صفحات  -

تاریخ انتشار 2017